fallocate.1 (499B)
1 .Dd September 12, 2015 2 .Dt FALLOCATE 1 3 .Os ubase 4 .Sh NAME 5 .Nm fallocate 6 .Nd preallocate files 7 .Sh SYNOPSIS 8 .Nm 9 .Op Fl o Ar num 10 .Fl l Ar num 11 .Ar file ... 12 .Sh DESCRIPTION 13 .Nm 14 if necessary creates and preallocates each 15 .Ar file 16 without truncation. 17 .sp 18 Given the filesystem supports 19 .Xr fallocate 2 , 20 it is a very fast method of preallocation. 21 .Sh OPTIONS 22 .Bl -tag -width Ds 23 .It Fl l Ar num 24 Preallocate 25 .Ar num 26 bytes. 27 .It Fl o Ar num 28 Offset allocation by 29 .Ar num 30 bytes. 31 .El 32 .Sh SEE ALSO 33 .Xr fallocate 2